Finding the Fourth Proportional to 397,344.09, 548,337.42 and 216,057.99
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Solution
The fourth proportional to 397,344.09, 548,337.42 and 216,057.99 is: 298,161.43
Step by Step Solution
- Step 1: Write the proportion equation
397,344.09 : 548,337.42 = 216,057.99 : x - Step 2: Convert to fraction form
397,344.09/548,337.42 = 216,057.99/x - Step 3: Cross multiply
397,344.09x = 548,337.42 × 216,057.99 - Step 4: Simplify right side
397,344.09x = 118,472,680,806.99 - Step 5: Solve for x
x = 118,472,680,806.99/397,344.09 - Step 6: Final answer
x = 298,161.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.